The Peercoin network activated in 2012 and is one of the first cryptocurrencies to ever be released. It is responsible for inventing proof-of-stake consensus, which makes it the first efficient and sustainable public blockchain technology. Peercoin was inspired by bitcoin, and it shares much of the source code and technical implementation of bitcoin. The Peercoin source code is distributed under the MIT/X11 software license. Unlike bitcoin, Namecoin, and Litecoin, Peercoin does not have a hard limit on the number of possible coins, but is designed to eventually attain an annual inflation rate of 1%. There is a deflationary aspect to Peercoin as the transaction fee of 0.01 PPC/kb paid to the network is destroyed. This feature, along with increased energy efficiency, aim to allow for greater long-term scalability. With the same encryption algorithm as Bitcoin (SHA-256), Peercoin is 100 times more energy efficient. Transactions in the Peercoin network are faster and cheaper. If there were not fierce competition on the cryptocurrency market, Peercoin would probably have long since become one of the most important cryptocurrencies. But in 2014 and 2015, however, there were many other interesting innovations in the cryptocurrency market that outperformed peercoin in a number of important properties. In contrast to DASH, Peercoin could not offer anonymity and the transactions in Dogecoin were even faster and cheaper than those of Peercoin. PoS technology ceased to be an advantage of peercoin and PoS continued to spread to other cryptocurrencies. The interest of the users drew it to the side of the minings on the CPUs and GPUs, then to the side of the Smart Contracts and PPC began to get a little forgotten. The Peercoin Team believes that adapting blockchains for wide scale use only through on-chain transactions will negatively affect the decentralization level and security of the network over time, therefore we choose to develop the Peercoin blockchain as a base layer settlement network with a sole focus on securing all forms of value recorded into the chain. This can be accomplished through Peercoin's philosophy of preserving and maximizing decentralization (which increases security) by developing the majority of features and technologies on top of the blockchain, rather than directly into the blockchain protocol itself. Thus the Peercoin Team focuses on developing second layer protocols and sub-networks that can interact with the base layer blockchain to adapt it for wide scale use and improve functionality such as tokens, smart contracts and high speed low cost transaction processing. In this way, Peercoin will act as a secure and censorship resistant base layer for the future blockchain connected world.
The PlatinCoin is based on Litecoin Technology. It is not only a new generation of cryptocurrency but, together with the PlatinCoin Cryptosystem, also an extremely flexible and multifunctional platform that allows everybody to create a wide variety of daily business operations without the delay of payment for goods and services, for example such simple things as the purchase of your daily coffee, online purchases or payments for your international travel insurance. The PlatinCoin is designed to become the most used cryptocoin worldwide, especially by international users not being able to own a bank account. Its underlying blockchain technology facilitates the daily high volume of payments. PlatinCoin provides fast, inexpensive, international and secure transfers by form of immediate payment. The advantages of PlatinCoin will appropriately address the respective payment needs of individual as well commercial users like merchants and service providers. In addition, the introduction of the PlatinCoin Debit Card will further contribute to the commercial viability of the PlatinCoin. PlatinCoin intends to become a central transmission point for FIAT money. Fast transaction periods and low variability risks will be applicable. Additionally, comprehensive payment facilities such as debit cards, ATM’s, etc. are being implemented to become a suitable payment method on high scale for clients and merchandisers. The PlatinCoin moreover aims to contribute to the improvement of people’s standard of living worldwide. This shall especially apply to people in developing countries who do not even have a bank account. As an instrument to increase prosperity, we have developed the PlatinCoin Minting Program. This Program allows nearly everyone to easily produce PlatinCoins themselves.